The removal of the printing establishment of the British American Bank Note Company from Montreal to Ottawa resulted in some marked changes in the shades of the then current postage stamps as we have already shown in a previous chapter. The registration stamps were also affected in some degree the 2 cents value, in particular, appearing in a number of new and brighter tints. The 5c appeared in blue-green--a distinct contrast from the green and yellow-green shades previously current. In 1892 some of the postage stamps, it will be remembered, appeared in sheets of 200 instead of 100 as formerly. About the same period new plates were made for the 5c registration stamp, these containing one hundred impressions in ten rows of ten, instead of fifty as before. On August 1st, 1893, a regular postage stamp of the denomination of 8c was issued for the purpose of paying the postage and registration charge and the appearance of this sounded the death knell of the special registration stamps. The supplies in the hands of postmasters were used up and when exhausted no more were printed. Much has been written regarding the 2c registration stamp printed in brown. These were originally found at the Miscou Light House Post Office in New Brunswick and though the stamps were in an unmistakably dark brown shade it has since been satisfactorily proved that the change was quite accidental and that immersion in peroxide would restore them to their original color. Although the Postmaster of the above named office is said to have stated that the stamps were in brown when he received them there is little doubt he must have been mistaken. Much the same thing happened in connection with the current six cents United States stamps at an office on the Pacific Coast (San Pedro). Some of these stamps were found in a distinct brown shade almost exactly matching that of the 4c value and though some local collectors had dreams of a rare error of color it was easily proved that they were simply oxidised. _Reference List._ 1875-89. Engraved and printed by the British American Bank Note Co., Montreal or Ottawa. No wmk. Perf. 12. 104. 2c vermilion, Scott's Nos. 151 or 152. 105. 5c green, Scott's No. 153. 106. 8c blue, Scott's No. 154. CHAPTER XXX. _The Postage Due Stamps._ Like most other countries Canada managed to collect the postage due on insufficiently prepaid mail matter for many years without the use of special stamps for the purpose. About 1906 it dawned on the Post Office Department that the use of special stamps would simplify matters and place the collection of monies due on a more systematic basis. Consequently a circular was issued to postmasters, under date of June 1st, 1906, advising them that postage due stamps would be issued and must, for the future, be used in collecting insufficient postage. The salient points from this circular are given by Mr. Howes as follows:--